Metal window-sash.



T. EMTMAN. METAL WINDOW SASH.

APPLICATION FILED MAR. z2,

Patented July 9, MM2.

Wm J a Qms THEODORE EMTMAN, OF LOS ANGELES, CALIFORNIA;

METAriWrNDoW-SASH.

A Specification of Letters Patent.

Patentediuly 9, 1912.

Application filed March 22, 1911. Serial No. 616,239.

T0 all lwhom, -t may concern.'

.Be it known that I, THEoDoRe EMTMAN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State ot California, have invented a new and useful Metal Vindow-Sash, of which the following is a specification.

This invention relates to metal window sashes particularly adapted for use in concrete buildings, and the objects of the invention are to obtain t-he maximum sized opening for the admission of light.

Further objects are to provide a construction which is. simple and econoniicatof manufacture, durable in use and which will be perfectly weather-proof. i

Referring. to the drawings: Figure 1 is a front-elevation of a window having sashes constructed in accordance with my invention. Fig. Qis a vertical sectional view on linear/ m2 Fig. 1. Fig. 3' is a sec-tion on line .r3-w3 Fig. 2. Fig, 4 is aperspeetire view in detail of the lower sash.

1 designates the upper sash and 2 desig nates the lower sash. Each sash consists of two vertical members, each comprising metal Z-bars 3 with inner iianges 4 between which is the glass 5. 6 designates horizontal members also of Z-bars for the upper part of the upper sash and the lower member of the upper sash is formed by an outer Z-bar 7 and an inner angle bar 8. The vertical and horizontal members of each sash are mitered at the corners and are secured together by a single-metal strap 9 which is passed completely around the four sides of the sash and the inner flanges of the respective sash bars are secured by bolts l() to the strap 9.

The lower sash member of the lower .sash is constructed similarly to the lower member of the upper sash, but the upper member of the lower sash has a flat bar l l which extends outwardly as a (lange and is adapted to overlap and lit against the adjacent projecting portion oi the angle bar S of the upper sash, as clearly shown in Fig. 2, and thereby form a closure between the two sashes when they are iu closed positien, as shown in Fig. 2.

The side [langes ol the vertical Z-bars 3 slide between a center bar 1Q and angle bars 13 secured to a plate 14 which closes a recess l5 tol-med iu the concrete wall 1G. the plate 14 being secured by bolts 17. The manner of forming the pocket 15 is disclosed in a companion application of mine filed March 22, 1911, sei-1.11 No. 616,240. 1s designates the weights. As shown in Fig. 2, a rubber l cleat 19 is arranged on the stool 20 and serves to make a weather-tight closure at this point in addition to prevent-ing noise or jarring the sash when it is lowered.

In the form `'shown in Figs. 5 and 6, the `glass 21 is secured between Vertical Z-bars 09 in both upper and lower sash. In the upper sashes horizontal Z-bars 23 are ar strap Q8 is a horizontal flat bar 29 which is adapted to lap over a. similar bar 30 on the lower part of the upper 'sash' and form -a closure between the two sashes.

Fach sash is pivotally mounted to a pair of slides. each slide comprising a channel bar 31 which slides between a vertical angle bar 3Q and a bar 33 secured to a p1ate34 which closes an opening 35 in which are the weights 36.

'l`\he trunnions 37 secured to the strap 28 have studs 38 which are journaled in the slides 31 and permit thesashes to be turned.

Vbat I claim is:

A window comprising a sash formed of vertical Z-bars, horizontal Z-loars at one end of the sash, a horizontal Z-bar at the other end of the sash, an angle bar at the latter end, and a metal strap extending around the tour sides of the sash' and securing said bars between the outer flanges thereof;

In testimony whereof, I have hereunto set. my hand at Los Angeles, California, this 33rd day of February, 1911.

Gr. T. HAGKLEY, FRANK L. A.. GRAHAM. 

